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By choosing the future event horizon as the horizon of the flat FLRW universe, we show that although the interacting holographic dark energy model is able to explain the phantom divide line crossing, but the thermodynamics second law is not…

广义相对论与量子宇宙学 · 物理学 2010-10-27 H. Mohseni Sadjadi

The thermodynamics of a scheme of dark matter-dark energy interaction is studied considering a holographic model for the dark energy in a flat Friedmann-Lemaitre-Robertson- Walker background. We obtain a total entropy rate for a general…

高能物理 - 理论 · 物理学 2016-01-05 Fabiola Arevalo , Paulo Cifuentes , Francisco Pena

In this work we explore the scope of two holographic dark energy models within the interacting scenario for the dark sector and spatial curvature. For one holographic model we consider the usual formula for the dark energy density with the…

广义相对论与量子宇宙学 · 物理学 2023-05-10 Azucena Bolaños , Miguel Cruz , Samuel Lepe , David Rogelio Márquez-Castillo

In this work we explore under a holographic approach the dark energy - dark matter interaction in a non-flat Friedmann-Lemaitre-Robertson-Walker spacetime, with a cut-off for the dark energy component given in terms of the Hubble scale.…

广义相对论与量子宇宙学 · 物理学 2018-07-10 Miguel Cruz , Samuel Lepe

We use three IR cutoffs, including the future event horizon, the Hubble and Granda-Oliveros (GO) cutoffs, to construct three holographic models of dark energy. Additionally, we consider a Friedmann-Robertson-Walker (FRW) universe filled by…

广义相对论与量子宇宙学 · 物理学 2017-06-06 M. Abdollahi Zadeh , A. Sheykhi , H. Moradpour

We formulate an extended holographic dark energy scenario based on a recently proposed two-parameter generalized entropic functional. Unlike constructions that phenomenologically impose modified entropy-area relations at the horizon level,…

广义相对论与量子宇宙学 · 物理学 2026-03-12 G. G. Luciano , E. N. Saridakis

A non-equilibrium thermodynamic analysis has been done for the interacting dark fluid in the universe bounded by the event horizon.From observational evidences it is assumed that at present the matter in the universe is dominated by two…

综合物理 · 物理学 2014-07-15 Subenoy Chakraborty , Atreyee Biswas

We explore the cosmological models of the late-time universe based on the holographic principle, taking into account the properties of the viscosity of the dark fluid. We use the mathematical formalism of generalized infrared cutoff…

广义相对论与量子宇宙学 · 物理学 2021-08-11 I. Brevik , A. V. Timoshkin

We have considered a cosmological model of holographic dark energy interacting with dark matter and another unknown component of dark energy of the universe. We have assumed two interaction terms $Q$ and $Q'$ in order to include the…

广义相对论与量子宇宙学 · 物理学 2015-05-19 Ujjal Debnath

We study the plausibility of a holographic dark energy (HDE) model using the form of horizon entropy proposed by Viaggiu in 2014. This form of entropy is a generalization of the usual Bekenstein-Hawking entropy, having an extra term arising…

广义相对论与量子宇宙学 · 物理学 2026-03-17 Somnath Saha , Subhajit Saha , Nilanjana Mahata

We study cosmological application of interacting holographic energy density in the framework of Brans-Dicke cosmology. We obtain the equation of state and the deceleration parameter of the holographic dark energy in a non-flat universe. As…

高能物理 - 理论 · 物理学 2009-11-05 Ahmad Sheykhi

Holographic dark energy models have been recently suggested which most clearly show that accelerating cosmology appears to be incompatible with mathematically consistent formulations of fundamental theories such as string/M theories. In…

天体物理学 · 物理学 2007-05-23 Pedro F. Gonzalez-Diaz

Motivated by the holographic principle, it has been suggested that the dark energy density may be inversely proportional to the area $A$ of the event horizon of the universe. However, such a model would have a causality problem. In this…

广义相对论与量子宇宙学 · 物理学 2012-06-06 Antonio Pasqua , A. Khodam-Mohammadi , Mubasher Jamil , R. Myrzakulov

We construct a new cosmological holographic dark energy scenario based on Loop Quantum Gravity inspired entropy, instead of the standard Bekenstein-Hawking one. The former is an extended black-hole entropy that arises from non-extensive…

广义相对论与量子宇宙学 · 物理学 2023-10-03 Andreas Lymperis

We have investigated the thermodynamical properties of the Universe with dark energy. Adopting the usual assumption in deriving the constant co-moving entropy density that the physical volume and the temperature are independent, we observed…

广义相对论与量子宇宙学 · 物理学 2010-10-27 Yungui Gong , Bin Wang , Anzhong Wang

We study a process of equilibration of holographic dark energy (HDE) with the cosmic horizon around the dark-energy dominated epoch. This process is characterized by a huge amount of information conveyed across the horizon, filling thereby…

广义相对论与量子宇宙学 · 物理学 2010-12-09 R. Horvat

Here, we consider new nonadditive entropy of the apparent horizon $S_K=S_{BH}/(1+\gamma S_{BH})$ with $S_{BH}$ being the Bekenstein--Hawking entropy. This is an alternative of the R\'{e}nyi and Tsallis entropies, that allows us, by…

综合物理 · 物理学 2025-11-18 S. I. Kruglov

Thermodynamics on the cosmological apparent horizon of a flat Friedmann-Lemaitre-Robertson-Walker metric has been investigated with Bekenstein entropy and Hawking temperature on the horizon, and Unruh temperature for the fluid inside the…

广义相对论与量子宇宙学 · 物理学 2016-07-15 Subhajit Saha

In the present paper, we provide a thermodynamical interpretation for the holographic dark energy model in a non-flat universe. For this case, the characteristic length is no more the radius of the event horizon ($R_E$) but the event…

高能物理 - 理论 · 物理学 2009-02-25 M R Setare

In this work we consider the entropy-corrected version of interacting holographic dark energy (HDE), in the non-flat universe enclosed by apparent horizon. Two corrections of entropy so-called logarithmic 'LEC' and power-law 'PLEC' in HDE…

广义相对论与量子宇宙学 · 物理学 2012-04-10 A. Khodam-Mohammadi , M. Malekjani
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